diff options
Diffstat (limited to 'src/platformsupport/fontdatabases/windows/qwindowsfontengine_p.h')
| -rw-r--r-- | src/platformsupport/fontdatabases/windows/qwindowsfontengine_p.h | 186 |
1 files changed, 186 insertions, 0 deletions
diff --git a/src/platformsupport/fontdatabases/windows/qwindowsfontengine_p.h b/src/platformsupport/fontdatabases/windows/qwindowsfontengine_p.h new file mode 100644 index 0000000000..709de7d11d --- /dev/null +++ b/src/platformsupport/fontdatabases/windows/qwindowsfontengine_p.h @@ -0,0 +1,186 @@ +/**************************************************************************** +** +** Copyright (C) 2016 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the QtGui module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 3 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL3 included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 3 requirements +** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 2.0 or (at your option) the GNU General +** Public license version 3 or any later version approved by the KDE Free +** Qt Foundation. The licenses are as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 +** included in the packaging of this file. Please review the following +** information to ensure the GNU General Public License requirements will +** be met: https://www.gnu.org/licenses/gpl-2.0.html and +** https://www.gnu.org/licenses/gpl-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QWINDOWSFONTENGINE_H +#define QWINDOWSFONTENGINE_H + +// +// W A R N I N G +// ------------- +// +// This file is not part of the Qt API. It exists purely as an +// implementation detail. This header file may change from version to +// version without notice, or even be removed. +// +// We mean it. +// + +#include <QtGui/private/qfontengine_p.h> + +#include <QtGui/QImage> +#include <QtCore/QSharedPointer> +#include <QtCore/QMetaType> + +#include <QtCore/qt_windows.h> + +QT_BEGIN_NAMESPACE + +class QWindowsNativeImage; +class QWindowsFontEngineData; + +class QWindowsFontEngine : public QFontEngine +{ + friend class QWindowsMultiFontEngine; + +public: + QWindowsFontEngine(const QString &name, LOGFONT lf, + const QSharedPointer<QWindowsFontEngineData> &fontEngineData); + + ~QWindowsFontEngine(); + void initFontInfo(const QFontDef &request, + int dpi); + + QFixed lineThickness() const Q_DECL_OVERRIDE; + Properties properties() const Q_DECL_OVERRIDE; + void getUnscaledGlyph(glyph_t glyph, QPainterPath *path, glyph_metrics_t *metrics) Q_DECL_OVERRIDE; + FaceId faceId() const Q_DECL_OVERRIDE; + bool getSfntTableData(uint tag, uchar *buffer, uint *length) const Q_DECL_OVERRIDE; + int synthesized() const Q_DECL_OVERRIDE; + QFixed emSquareSize() const Q_DECL_OVERRIDE; + + glyph_t glyphIndex(uint ucs4) const Q_DECL_OVERRIDE; + bool stringToCMap(const QChar *str, int len, QGlyphLayout *glyphs, int *nglyphs, ShaperFlags flags) const Q_DECL_OVERRIDE; + void recalcAdvances(QGlyphLayout *glyphs, ShaperFlags) const Q_DECL_OVERRIDE; + + void addOutlineToPath(qreal x, qreal y, const QGlyphLayout &glyphs, QPainterPath *path, QTextItem::RenderFlags flags) Q_DECL_OVERRIDE; + virtual void addGlyphsToPath(glyph_t *glyphs, QFixedPoint *positions, int nglyphs, + QPainterPath *path, QTextItem::RenderFlags flags) Q_DECL_OVERRIDE; + + HGDIOBJ selectDesignFont() const; + + glyph_metrics_t boundingBox(const QGlyphLayout &glyphs) Q_DECL_OVERRIDE; + glyph_metrics_t boundingBox(glyph_t g) Q_DECL_OVERRIDE { return boundingBox(g, QTransform()); } + glyph_metrics_t boundingBox(glyph_t g, const QTransform &t) Q_DECL_OVERRIDE; + + + QFixed ascent() const Q_DECL_OVERRIDE; + QFixed descent() const Q_DECL_OVERRIDE; + QFixed leading() const Q_DECL_OVERRIDE; + QFixed xHeight() const Q_DECL_OVERRIDE; + QFixed capHeight() const Q_DECL_OVERRIDE; + QFixed averageCharWidth() const Q_DECL_OVERRIDE; + qreal maxCharWidth() const Q_DECL_OVERRIDE; + qreal minLeftBearing() const Q_DECL_OVERRIDE; + qreal minRightBearing() const Q_DECL_OVERRIDE; + + QImage alphaMapForGlyph(glyph_t t) Q_DECL_OVERRIDE { return alphaMapForGlyph(t, QTransform()); } + QImage alphaMapForGlyph(glyph_t, const QTransform &xform) Q_DECL_OVERRIDE; + QImage alphaRGBMapForGlyph(glyph_t t, QFixed subPixelPosition, const QTransform &xform) Q_DECL_OVERRIDE; + glyph_metrics_t alphaMapBoundingBox(glyph_t glyph, QFixed, const QTransform &matrix, GlyphFormat) Q_DECL_OVERRIDE; + + QFontEngine *cloneWithSize(qreal pixelSize) const Q_DECL_OVERRIDE; + Qt::HANDLE handle() const Q_DECL_OVERRIDE; + bool supportsTransformation(const QTransform &transform) const Q_DECL_OVERRIDE; + +#ifndef Q_CC_MINGW + void getGlyphBearings(glyph_t glyph, qreal *leftBearing = 0, qreal *rightBearing = 0) Q_DECL_OVERRIDE; +#endif + + bool hasUnreliableGlyphOutline() const Q_DECL_OVERRIDE; + + int getGlyphIndexes(const QChar *ch, int numChars, QGlyphLayout *glyphs) const; + void getCMap(); + + bool getOutlineMetrics(glyph_t glyph, const QTransform &t, glyph_metrics_t *metrics) const; + + const QSharedPointer<QWindowsFontEngineData> &fontEngineData() const { return m_fontEngineData; } + + void setUniqueFamilyName(const QString &newName) { uniqueFamilyName = newName; } + +private: + QWindowsNativeImage *drawGDIGlyph(HFONT font, glyph_t, int margin, const QTransform &xform, + QImage::Format mask_format); + bool hasCFFTable() const; + bool hasCMapTable() const; + bool hasGlyfTable() const; + bool hasEbdtTable() const; + + const QSharedPointer<QWindowsFontEngineData> m_fontEngineData; + + const QString _name; + QString uniqueFamilyName; + HFONT hfont; + const LOGFONT m_logfont; + uint ttf : 1; + uint hasOutline : 1; + uint hasUnreliableOutline : 1; + uint cffTable : 1; + TEXTMETRIC tm; + const unsigned char *cmap; + int cmapSize; + QByteArray cmapTable; + mutable qreal lbearing; + mutable qreal rbearing; + QFixed designToDevice; + int unitsPerEm; + QFixed x_height; + FaceId _faceId; + + mutable int synthesized_flags; + mutable QFixed lineWidth; + mutable unsigned char *widthCache; + mutable uint widthCacheSize; + mutable QFixed *designAdvances; + mutable int designAdvancesSize; +}; + +class QWindowsMultiFontEngine : public QFontEngineMulti +{ +public: + explicit QWindowsMultiFontEngine(QFontEngine *fe, int script); + + QFontEngine *loadEngine(int at) Q_DECL_OVERRIDE; +}; + +QT_END_NAMESPACE + +Q_DECLARE_METATYPE(HFONT) +Q_DECLARE_METATYPE(LOGFONT) + +#endif // QWINDOWSFONTENGINE_H |